> browse/registry

> pglite

You are an expert in PGlite, the lightweight WASM Postgres build that runs in the browser, Node.js, and Deno. You help developers embed a full Postgres instance (with extensions like pgvector, PostGIS) in client-side apps, Electron, React Native, and serverless functions — providing real SQL with JSONB, full-text search, and vector similarity search at ~3MB compressed, without a server.

> sqlite

SQLite is a self-contained, serverless, zero-configuration embedded SQL database engine. Learn CLI usage, Node.js integration with better-sqlite3, Python's built-in sqlite3 module, and best practices for schema design, indexing, and WAL mode.

> web-scraper

Extract structured data from web pages and load it into databases. Use when a user asks to scrape a website, build a data pipeline, extract data from a webpage, pull prices from a site, collect links, gather product listings, download page content, parse HTML, set up ETL, or automate data collection. Handles static HTML, JavaScript-rendered pages, anti-bot proxies (Bright Data), data transformation, deduplication, and database loading.

> bun

Assists with using Bun as an all-in-one JavaScript/TypeScript runtime, package manager, bundler, and test runner. Use when building HTTP servers, managing packages, running tests, or migrating from Node.js. Trigger words: bun, bun serve, bun install, bun test, bun build, javascript runtime, bun runtime.

> vue

Vue.js is a progressive JavaScript framework for building user interfaces. It features the Composition API with reactive refs and computed values, single-file components, and an approachable learning curve with powerful scaling capabilities.

> urql

You are an expert in urql, the highly customizable and lightweight GraphQL client for React, Vue, Svelte, and vanilla JavaScript. You help developers fetch GraphQL data with minimal bundle size, document caching, normalized caching via Graphcache, exchanges (middleware pipeline), subscriptions, and offline support — providing a leaner alternative to Apollo Client with better extensibility.

> mise

Manage tool versions and tasks with mise (formerly rtx). Use when a user asks to manage Node.js/Python/Go versions per project, replace nvm/pyenv/asdf, or define project-level tool requirements.

> changesets

Assists with managing versioning and changelogs in JavaScript/TypeScript monorepos using Changesets. Use when automating semantic versioning, generating changelogs from PRs, coordinating multi-package releases, or publishing to npm. Trigger words: changesets, versioning, changelog, npm publish, monorepo release, semver.

> graphql-yoga

You are an expert in GraphQL Yoga, the batteries-included GraphQL server by The Guild. You help developers build production GraphQL APIs with schema-first or code-first approaches, file uploads, subscriptions, Envelop plugin system, response caching, error masking, and deployment to any JS runtime (Node.js, Deno, Bun, Cloudflare Workers, AWS Lambda) — the modern alternative to Apollo Server.

> hono

You are an expert in Hono, the ultrafast web framework for the edge. You help developers build APIs and web applications that run on Cloudflare Workers, Deno, Bun, Node.js, AWS Lambda, and Vercel Edge — with a tiny footprint (~14KB), middleware ecosystem, JSX support, RPC client, and Web Standards API compatibility that makes code truly portable across runtimes.

> echarts

Create interactive data visualizations with Apache ECharts. Use when a user asks to build charts, dashboards, or data-driven graphics using ECharts in React, Vue, or vanilla JavaScript applications.

> amqplib

You are an expert in amqplib, the Node.js client for RabbitMQ and AMQP 0-9-1 protocol. You help developers implement reliable message queuing with work queues, pub/sub fanout, topic routing, RPC patterns, dead letter queues, and message acknowledgment — building decoupled microservices that communicate asynchronously through RabbitMQ.

> mysql

MySQL is the world's most popular open-source relational database management system. Learn installation, SQL queries, indexing strategies, replication setup, and client integration with Node.js (mysql2) and Python (mysql-connector).

> pdfkit

Generate PDF documents programmatically with PDFKit — add text, images, vector graphics, tables, headers/footers, and custom fonts. Use when tasks involve creating invoices, reports, certificates, or any structured PDF output from application data in Node.js.

> go-fiber

You are an expert in Fiber, the Express.js-inspired web framework for Go built on top of Fasthttp. You help developers build high-performance APIs and web services using Fiber's familiar routing, middleware system, template rendering, WebSocket support, and zero-allocation design — achieving top-tier performance while maintaining the developer experience Go developers love from Express/Koa in Node.js.

> foundry

You are an expert in Foundry, the blazing-fast Ethereum development toolkit written in Rust. You help developers write, test, deploy, and debug Solidity smart contracts using Forge (testing), Cast (CLI interactions), Anvil (local node), and Chisel (Solidity REPL) — with native Solidity testing (no JavaScript), fuzz testing, gas optimization, and fork testing against mainnet state.

> locust

When the user wants to perform load testing using Python with Locust's distributed architecture and real-time web UI. Also use when the user mentions "locust," "Python load testing," "distributed load test," "locust web UI," or "locustfile." For JavaScript-based load testing, see k6 or artillery.

> deno

Assists with building secure JavaScript and TypeScript applications using the Deno runtime. Use when creating servers, CLI tools, or scripts with Deno's built-in tooling, permission model, and web standards APIs. Trigger words: deno, deno deploy, deno serve, deno kv, deno permissions, secure runtime, jsr.

> pipedream

You are an expert in Pipedream, the workflow automation platform built for developers. You help teams build event-driven integrations connecting 2,000+ apps using Node.js/Python code steps, pre-built triggers, and managed auth — with built-in key-value store, queues, and HTTP endpoints for complex automation that goes beyond simple no-code tools.

> prettier

Prettier is an opinionated code formatter that enforces a consistent style across your entire codebase. Unlike linters that flag problems for you to fix, Prettier rewrites your code automatically. It supports JavaScript, TypeScript, HTML, CSS, JSON, Markdown, YAML, and many other languages. By removing style debates from code review, Prettier lets teams focus on logic and architecture instead of arguing about tabs versus spaces or trailing commas.